Did you try sending a test email to some non-Comcast account you have like Yahoo or Gmail?
yes it did not work.
Then I am going to escalate this to the forum admins for follow-up. You should see a response here in this thread--------------
Hi, Suepur. Thank you for posting and for patiently awaiting a reply. You have come to the right place for help. It does sound like you're using a 3rd party email client due to the symptoms you're experiencing. Are you able to confirm that for us? That would be using a program like Outlook, Windows Live, Apple Mail, etc.
Outside of the Xfinity Connect portal though on your computer, do you have another mail program that has been used or is sometimes still being used?
yes I have a gmail email and I am able to send emails from that account on this laptop. is that what you were asking?
@ComcastMorgan is asking if you use another program besides connecting to email using your web browser. In other words, are you using something like Mac Mail, Thunderbird, Windows Live Mail, Outlook [not outlook.com], Outlook Express, etc. to download your email to your laptop.